Resolution:
Coherence does not support a SITE-SAFE mode for StatusHA. See the possible values here:

http://download.oracle.com/otn_hosted_doc/coherence/330/com/tangosol/net/management/Registry.html

Coherence does not take site into account for data distribution at this time. The only field it takes into account is &ltmachine-id> to ensure that data is distributed across different machines.

See this link for details: http://wiki.tangosol.com/display/COH33UG/unicast-listener

If you are interested in setting up redundancy between two sites, take a look at our examples for connecting two clusters:

http://wiki.tangosol.com/pages/viewpage.action?pageId=1343616